DNA structure colouring questions !

1. What are the 3 parts of a nucleotide ?

Ans. 1) a five carbon ribose sugar,

 2) a phosphate molecule and 

3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil.

2. What 4 bases are found in DNA?

Ans.  adenine (abbreviated A), cytosine (C), guanine (G) and thymine (T)

3. What 2 molecules make the sides of the DNA ladder?

Ans. It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.)

4. What molecules make the steps or rings of the ladder ?

Ans. Nitrogenous Bases: HydrogenBonding, Lesson & Quiz. Adenine, cytosine, thymine, guanine, and uracil! They are the 'rungs' in the DNA ladder. Learn how these ring-shaped molecules spell out your genes and pair with each other.

5. Which molecules do the bases attach to on the sides 

Ans.(Deoxyribose is the name of the sugar found in the backbone of DNA.

6. Which bases always pair together ?

Ans.Adenine pairs with thymine and guanine pairs with cytosine.